Improvement in envelopes



J. H. GUEST. Envelope.

No, 212,687. I Patented Feb. 25, 1879..

N.PEIERS. PNOTOLITNOGRAFHER. WASHINGTON. [1.0.

UNITED STATES PATENT OEEIoE.

JAMES H. GUEST, OF NEW ALBANY, INDIANA.

IMPROVEMENT IN ENVELOPES.

Specification forming part of Letters Patent No. 212,687, dated February 25, 1879 application filed April 20, 1878.

To all whom it may concern.-

Be it known that I, JAMES H. GUEsT, of New Albany, in the county of Floyd and State of Indiana, have invented certain new and useful Improvements in Envelopes; and I do hereby declare the following; to be afull, clear, and exact description thereof, reference being had to the accompanyingdrawing, and to the letters of reference marked thereon.

My invention relates particularly to that class of envelopes which are used for sending circulars, advertisements, &c'., through the mails. This class of envelopes must be furnished very cheap, and hence the paper from which they are made is necessarily thin and of a poor quality. The flap in these envelopes, when used for the purposes above stated, is al ways tucked in within the envelope, to hold the circular or other paper therein; but, the envelope being of thin and poor quality of paper, the flap will bend or crease and work out either wholly or partially, which is a great annoyance to those handling the mail-matter, as

well as making a liability of losing the contents.

The object of my invention is to obviate this difficulty 5 and to this end the nature of my invention consists in providing the flap of this class of envelopes with re-enforcin g wings, so as to make the entire flap of double thickness, thereby stiflening the flap sufficiently to prevent the same from working out.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, which represents an envelope, showing the side wings of the flap before they are folded down.

A represents an envelope of the character above stated, and B is the usual flap of such envelope. This flap is cut, in making the envelope, so as to form the two side wings, G O, which are to be folded on the lines a a, when said flaps meet in the center, and, when pasted down to the flap, make said flap of double thickness throughout. When the envelope, then, is used for the purpose intended, and the flap tucked in within the envelope, said flap cannot work out, as it would easily do were the flap of single thickness.

I am aware that an envelope has been made in which the flap has been provided with a central re-enforced tongue and partially re-enforced flap, for the purpose of facilitating the entrance or insertion of said tongue into a slit made in the body of the envelope, and I do not lay any claim to such invention. My invention is for an entirely difierent purpose, and instead of re-enforcin g a tongue projecting from the center of the flap, Ire-enforce the entire flap itself.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

An envelope having its flap .13 provided with side wings, G, for the purpose of re-ent'orc ing the entire body of the flap, and making the same of double thickness throughout, substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 15th day of April, 1878.

JAMES HERVEY GUEST. Witnesses:

NoBLE D. MANN, O. B. ALEXANDER. 

